After losing his father at the age of 10, Nicholas Copernicus, under the influence of his uncle, received an education at Krakow Academy and the University of Bologna, where he had a professor encourage him to study astronomy.
He later returned home and became a secretary for his uncle, at the time the bishop of Ermland.
After his uncle died, he took a new position in the church and started to do more work in astronomy.
He later became a well known astronomer, and he later was appointed by the pope and developed a new calendar for the church.
It wasn't until later in 1530 where he published his discovery that the Earth and other planets revolve around the sun, . . .
and this belief has been proven correct and is still used today.